Research for the development and management of groundwater in Orestiada aquifer system (Doctoral thesis)
Αδαμίδης, Αδάμ/ Adamidis, Adam
This doctoral thesis investigates the relationship between surface water and groundwater, as well as the relationship between hydrochemical characteristics and groundwater hydraulic factors. The purpose of the doctoral thesis is the investigation of the hydrogeological and hydrochemical conditions of the Ooides aquifer system in the Prefecture of Evros, as well as the evaluation of the interaction of groundwater and surface water and water-rock interactions. Considering that the integrated and rational groundwater management is based on the results of interdisciplinary researches, this thesis tries to approach this issue from the viewpoint of hydrochemistry and applied Hydrogeology regarding the mathematical models of groundwater flow simulation. The thesis aims to contribute to the reduction of the uncertainty of conceptual model development utilizing groundwater hydrochemical data as factors for the interpretation of the groundwater flow and then based on the resulting interpretations to create the mathematical simulation model. The study area concerns the area of Ooides included in the geographical boundaries of the Municipality of Orestiada, in the northern part of the Prefecture of Evros, within the Region of Eastern Macedonia and Thrace. The research area, occupies an area of 142.88 km2 , is a narrow strip, whose eastern border is Evros River. Cultivating activities are developed throughout the study area. Its groundwater potential was utilized by drilling three hundred and sixty (360) boreholes in the period 1976-1982, exclusively for irrigation use. The base ground of the area is the Holocene sediments in the lithological composition of which conglomerates, sands, gravels and clay participate in interlocking layers. The alluvial deposits are usually deposited on the conglomerates of the Pleistocene formations. The aquifer is recharged through the rainfall infiltration, the surface runoff of the Evros and Arda rivers and the Neohori stream, as well as irrigation returns. The thesis was based on the gathering and analysis of existing data and studies as well as the collection of original data from a network of thirty-six (36) monitoring wells, with a program of measurements in the months of May, June and November, December, in the three years 2018, 2019, 2020. The collection of hydrochemical data was carried out by a network of 30 sampling wells during the pumping periods (August - September) of the years 2018, 2019 and 2020, Statistical analysis of the data and multi-criteria analysis were performed. Piezometric maps were designed, as well as distribution maps of the hydrochemical parameters for each measurement campaign. This was followed by the development of the conceptual model of the aquifer under study, based on the results of the relevant hydrochemical analyses. The simulation was done using the MODFLOW code, which is the most widely used groundwater flow simulation code. The structure and structure of this thesis, as well as the topics it deals with, are presented as follows: In the 1st Chapter there is an introduction to the subject, which this thesis deals with, the study area is presented, the methodology followed, as well as the works carried out are listed. In the 2nd Chapter, the geography of the wider research area is described, statistics are listed and environmental issues of the area are developed. In the 3rd Chapter, the geomorphology and geology of the wider, but also the narrow research area is described. In the 4th Chapter, the surface hydrology and the hydrological data of the study area are analyzed. In Chapter 5, the hydrogeological characteristics of the underground aquifer system under consideration are described in detail, the results of level measurements and hydraulic parameters are listed and analyzed. In Chapter 6, the groundwater quality characteristics in the research area are analyzed. The results of the determinations of the various chemical parameters are presented, as they were measured "in situ" in the field or in the laboratory. In addition, results of multicriteria statistical analysis and diagrams for water-rock and surface-groundwater interaction are presented. In the 7th Chapter, the groundwater flow model of the studied aquifer is developed using the MODFLOW code and the parameters of the relevant groundwater balance are calculated. The conceptual model is developed using the conclusions of the hydrochemical analysis. The relationship between hydrochemical parameters and factors that regulate aquifer hydrological balance and groundwater flow is investigated. The 8th Chapter lists the main conclusions drawn from the research in the context of the doctoral thesis Finally, in the 9th Chapter the Greek and international bibliographic references are provided, which cover all the Chapters of the thesis followed by the Appendix with the results from the hydrochemical analyzes per sampling period, as well as relevant photographs from the field investigation.
Institution and School/Department of submitter: | Δημοκρίτειο Πανεπιστήμιο Θράκης. Πολυτεχνική Σχολή. Τμήμα Πολιτικών Μηχανικών |
Subject classification: | Groundwater--Management--Research |
Keywords: | Υδροχημεία υπόγειου νερού,Εφαρμοσμένη υδρογεωλογία,Αλληλεπίδραση πετρώματος – υπόγειου νερού,Groundwater Hydrochemistry,Applied hydrogeology,Water-rock interaction |
URI: | https://repo.lib.duth.gr/jspui/handle/123456789/20059 |
Appears in Collections: | ΠΟΛΙΤΙΚΩΝ ΜΗΧΑΝΙΚΩΝ |
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AdamidisA_2024.pdf | Διδακτορική διατριβή | 18.62 MB | Adobe PDF | View/Open |
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https://repo.lib.duth.gr/jspui/handle/123456789/20059
http://dx.doi.org/10.26257/heal.duth.18748
This item is licensed under a Creative Commons License